| District of Alberta area codes: 403 | |
|---|---|
| Country | Canada |
| State/Province | Alberta |
| Major City | Sibbald |
| Time Zone | Mountain |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 403-342 | Red Deer, AB | Telus | |
| 403-343 | Red Deer, AB | Telus | |
| 403-344 | Coutts, AB | Telus | |
| 403-345 | Coaldale, AB | Telus | |
| 403-346 | Red Deer, AB | Telus | |
| 403-347 | Red Deer, AB | Telus | |
| 403-348 | Red Deer, AB | Telus | |
| 403-349 | Red Deer, AB | Telus | |
| 403-350 | Red Deer, AB | Telus | |
| 403-351 | Calgary, AB | Allstream Inc. | |
| 403-352 | Red Deer, AB | Telus | |
| 403-353 | Lethbridge, AB | Telus | |
| 403-354 | Calgary, AB | Bell Mobility | |
| 403-355 | Calgary, AB | Bell West Inc. | |
| 403-356 | Red Deer, AB | Telus | |
| 403-357 | Red Deer, AB | Telus | |
| 403-358 | Red Deer, AB | Telus | |
| 403-359 | Lethbridge, AB | Telus | |
| 403-360 | Lethbridge, AB | Rogers Communications Partnership (wireless) | |
| 403-361 | Strathmore, AB | Telus |
There are 781 prefixes, In the code area, the major cities are Milo, AB;Sibbald, AB;Eckville, AB;High River, AB;N. The major city is Milo.